The upper limit for retinol is 3,500 RAE per day
Also specifically formulated for women, these capsules from Bosley MD help combat hair loss with DHT-inhibiting botanicals plus biotin, niacin, and zinc
[DOI] [PubMed] [Google Scholar] 219.Dorner M, Horwitz JA, Donovan BM, Labitt RN, Budell WC, Friling T, Vogt A, Catanese MT, Satoh T, Kawai T, et al
However, it's best to avoid layering GHK-Cu with highly acidic ingredients (like L-ascorbic acid Vitamin C) or strong exfoliants (like AHAs/BHAs and retinoids) in the same application
So, and for people, if you know, I just realized like I'm using perimenopause menopause and I'm just like assuming we're all on the same page